<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
	<title>三张图轮播（不兼容IE6）</title>
	<link rel="stylesheet" type="text/css" href="css/main.css">
</head>
<body>	
    <div class="banner">
        <div class="banner_middle">
        	<div class="banner_middle_box">
            	<div class="banner_middle_box1" style="left: 0px;">
					<a href="javascript:;" title="三张图轮播（不兼容IE6）" target="_blank">
                        <img src="images/1.png" width="1200" height="320" title="三张图轮播（不兼容IE6）" alt="三张图轮播（不兼容IE6）">
                    </a>  
                    <a href="javascript:;" title="三张图轮播（不兼容IE6）" target="_blank">
                        <img src="images/2.png" width="1200" height="320" title="三张图轮播（不兼容IE6）" alt="三张图轮播（不兼容IE6）">
                    </a> 
                    <a href="javascript:;" title="三张图轮播（不兼容IE6）" target="_blank">
                        <img src="images/3.png" width="1200" height="320" title="三张图轮播（不兼容IE6）" alt="三张图轮播（不兼容IE6）">
                    </a> 
				</div>
                <div class="banner_middle_box2" style="left: -3600px;">
					<a href="javascript:;" title="三张图轮播（不兼容IE6）" target="_blank">
                        <img src="images/1.png" width="1200" height="320" title="三张图轮播（不兼容IE6）" alt="三张图轮播（不兼容IE6）">
                    </a>  
                    <a href="javascript:;" title="三张图轮播（不兼容IE6）" target="_blank">
                        <img src="images/2.png" width="1200" height="320" title="三张图轮播（不兼容IE6）" alt="三张图轮播（不兼容IE6）">
                    </a> 
                    <a href="javascript:;" title="三张图轮播（不兼容IE6）" target="_blank">
                        <img src="images/3.png" width="1200" height="320" title="三张图轮播（不兼容IE6）" alt="三张图轮播（不兼容IE6）">
                    </a> 
				</div>
                <div class="btn_left ab" style="width: 351.5px;"></div>
                <div class="btn_right ab" style="width: 351.5px;"></div>

            </div>
        </div>
    </div>
	  
	<script type="text/javascript" src="js/jquery.min.js"></script>
	
	
	</body>

<script>
	
	// JavaScript Document
$(function(){

jQuery.extend( jQuery.easing,
{
  def: 'easeOutQuad',
  swing: function (x, t, b, c, d) {
    //alert(jQuery.easing.default);
    return jQuery.easing[jQuery.easing.def](x, t, b, c, d);
  },
  easeInQuad: function (x, t, b, c, d) {
    return c*(t/=d)*t + b;
  },
  easeOutQuad: function (x, t, b, c, d) {
    return -c *(t/=d)*(t-2) + b;
  },
  easeInOutQuad: function (x, t, b, c, d) {
    if ((t/=d/2) < 1) return c/2*t*t + b;
    return -c/2 * ((--t)*(t-2) - 1) + b;
  },
  easeInCubic: function (x, t, b, c, d) {
    return c*(t/=d)*t*t + b;
  },
  easeOutCubic: function (x, t, b, c, d) {
    return c*((t=t/d-1)*t*t + 1) + b;
  },
  easeInOutCubic: function (x, t, b, c, d) {
    if ((t/=d/2) < 1) return c/2*t*t*t + b;
    return c/2*((t-=2)*t*t + 2) + b;
  },
  easeInQuart: function (x, t, b, c, d) {
    return c*(t/=d)*t*t*t + b;
  },
  easeOutQuart: function (x, t, b, c, d) {
    return -c * ((t=t/d-1)*t*t*t - 1) + b;
  },
  easeInOutQuart: function (x, t, b, c, d) {
    if ((t/=d/2) < 1) return c/2*t*t*t*t + b;
    return -c/2 * ((t-=2)*t*t*t - 2) + b;
  },
  easeInQuint: function (x, t, b, c, d) {
    return c*(t/=d)*t*t*t*t + b;
  },
  easeOutQuint: function (x, t, b, c, d) {
    return c*((t=t/d-1)*t*t*t*t + 1) + b;
  },
  easeInOutQuint: function (x, t, b, c, d) {
    if ((t/=d/2) < 1) return c/2*t*t*t*t*t + b;
    return c/2*((t-=2)*t*t*t*t + 2) + b;
  },
  easeInSine: function (x, t, b, c, d) {
    return -c * Math.cos(t/d * (Math.PI/2)) + c + b;
  },
  easeOutSine: function (x, t, b, c, d) {
    return c * Math.sin(t/d * (Math.PI/2)) + b;
  },
  easeInOutSine: function (x, t, b, c, d) {
    return -c/2 * (Math.cos(Math.PI*t/d) - 1) + b;
  },
  easeInExpo: function (x, t, b, c, d) {
    return (t==0) ? b : c * Math.pow(2, 10 * (t/d - 1)) + b;
  },
  easeOutExpo: function (x, t, b, c, d) {
    return (t==d) ? b+c : c * (-Math.pow(2, -10 * t/d) + 1) + b;
  },
  easeInOutExpo: function (x, t, b, c, d) {
    if (t==0) return b;
    if (t==d) return b+c;
    if ((t/=d/2) < 1) return c/2 * Math.pow(2, 10 * (t - 1)) + b;
    return c/2 * (-Math.pow(2, -10 * --t) + 2) + b;
  },
  easeInCirc: function (x, t, b, c, d) {
    return -c * (Math.sqrt(1 - (t/=d)*t) - 1) + b;
  },
  easeOutCirc: function (x, t, b, c, d) {
    return c * Math.sqrt(1 - (t=t/d-1)*t) + b;
  },
  easeInOutCirc: function (x, t, b, c, d) {
    if ((t/=d/2) < 1) return -c/2 * (Math.sqrt(1 - t*t) - 1) + b;
    return c/2 * (Math.sqrt(1 - (t-=2)*t) + 1) + b;
  },
  easeInElastic: function (x, t, b, c, d) {
    var s=1.70158;var p=0;var a=c;
    if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
    if (a < Math.abs(c)) { a=c; var s=p/4; }
    else var s = p/(2*Math.PI) * Math.asin (c/a);
    return -(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
  },
  easeOutElastic: function (x, t, b, c, d) {
    var s=1.70158;var p=0;var a=c;
    if (t==0) return b;  if ((t/=d)==1) return b+c;  if (!p) p=d*.3;
    if (a < Math.abs(c)) { a=c; var s=p/4; }
    else var s = p/(2*Math.PI) * Math.asin (c/a);
    return a*Math.pow(2,-10*t) * Math.sin( (t*d-s)*(2*Math.PI)/p ) + c + b;
  },
  easeInOutElastic: function (x, t, b, c, d) {
    var s=1.70158;var p=0;var a=c;
    if (t==0) return b;  if ((t/=d/2)==2) return b+c;  if (!p) p=d*(.3*1.5);
    if (a < Math.abs(c)) { a=c; var s=p/4; }
    else var s = p/(2*Math.PI) * Math.asin (c/a);
    if (t < 1) return -.5*(a*Math.pow(2,10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )) + b;
    return a*Math.pow(2,-10*(t-=1)) * Math.sin( (t*d-s)*(2*Math.PI)/p )*.5 + c + b;
  },
  easeInBack: function (x, t, b, c, d, s) {
    if (s == undefined) s = 1.70158;
    return c*(t/=d)*t*((s+1)*t - s) + b;
  },
  easeOutBack: function (x, t, b, c, d, s) {
    if (s == undefined) s = 1.70158;
    return c*((t=t/d-1)*t*((s+1)*t + s) + 1) + b;
  },
  easeInOutBack: function (x, t, b, c, d, s) {
    if (s == undefined) s = 1.70158; 
    if ((t/=d/2) < 1) return c/2*(t*t*(((s*=(1.525))+1)*t - s)) + b;
    return c/2*((t-=2)*t*(((s*=(1.525))+1)*t + s) + 2) + b;
  },
  easeInBounce: function (x, t, b, c, d) {
    return c - jQuery.easing.easeOutBounce (x, d-t, 0, c, d) + b;
  },
  easeOutBounce: function (x, t, b, c, d) {
    if ((t/=d) < (1/2.75)) {
      return c*(7.5625*t*t) + b;
    } else if (t < (2/2.75)) {
      return c*(7.5625*(t-=(1.5/2.75))*t + .75) + b;
    } else if (t < (2.5/2.75)) {
      return c*(7.5625*(t-=(2.25/2.75))*t + .9375) + b;
    } else {
      return c*(7.5625*(t-=(2.625/2.75))*t + .984375) + b;
    }
  },
  easeInOutBounce: function (x, t, b, c, d) {
    if (t < d/2) return jQuery.easing.easeInBounce (x, t*2, 0, c, d) * .5 + b;
    return jQuery.easing.easeOutBounce (x, t*2-d, 0, c, d) * .5 + c*.5 + b;
  }
});





  $(function(){
    
    
    //璁剧疆banner瀹藉害
    var bannerindex=1;

    var box1left=$(".banner_middle_box1").css("left");
    var box2left=$(".banner_middle_box2").css("left");
    var bannerWidth=($(window).width()-1200)/2;

    $(".btn_left,.btn_right").width(bannerWidth);
    $(".banner_middle_box2").html($(".banner_middle_box1").html());
    var bannerboxwidth=$(".banner_middle_box1").width();
    function addbannerindex(){
      bannerindex==2?bannerindex=0:bannerindex++;
    }
    function reducebannerindex(){
      bannerindex==0?bannerindex=2:bannerindex--;
    }
    $(".btn_left").click(function(){
      reducebannerindex();
      box1left=parseInt(box1left)+1200+"px";
      box2left=parseInt(box2left)+1200+"px";
      
      if(parseInt(box1left)==0){  
        $(".banner_middle_box2").css("left",-(bannerboxwidth+1200)+"px")
        box2left=$(".banner_middle_box2").css("left");
        box2left=parseInt(box2left)+1200+"px";
      }
      if(parseInt(box2left)==0){  
        $(".banner_middle_box1").css("left",-(bannerboxwidth+1200)+"px")
        box1left=$(".banner_middle_box1").css("left");
        box1left=parseInt(box1left)+1200+"px";
      }
      
      $(".banner_middle_box1").animate({left:box1left},{duration: 1200, easing:"easeOutQuad"});
      $(".banner_middle_box2").animate({left:box2left},{duration: 1200, easing:"easeOutQuad"});
      $(".bannerbtnlistg").eq(bannerindex-1).addClass('addimg2');
      $(".bannerbtnlistg").eq(bannerindex-1).siblings('.bannerbtnlistg').removeClass('addimg2');

    })
    function rightclick(){
      box1left=parseInt(box1left)-1200+"px";
      box2left=parseInt(box2left)-1200+"px";
      
      if(parseInt(box1left)==-(bannerboxwidth-1200)){ 
        $(".banner_middle_box2").css("left",2400+"px")
        box2left=$(".banner_middle_box2").css("left");
        box2left=parseInt(box2left)-1200+"px";
      }
      if(parseInt(box2left)==-(bannerboxwidth-1200)){ 
        $(".banner_middle_box1").css("left",2400+"px")
        box1left=$(".banner_middle_box1").css("left");
        box1left=parseInt(box1left)-1200+"px";
      }
      $(".banner_middle_box1").stop();
      $(".banner_middle_box2").stop();
      $(".banner_middle_box1").animate({left:box1left},{duration: 1200, easing:"easeOutQuad"});
      $(".banner_middle_box2").animate({left:box2left},{duration: 1200, easing:"easeOutQuad"});
      $(".bannerbtnlistg").eq(bannerindex-1).addClass('addimg2');
      $(".bannerbtnlistg").eq(bannerindex-1).siblings('.bannerbtnlistg').removeClass('addimg2');
    }
    
    $(".btn_right").click(function(){
      addbannerindex();
      rightclick();     
    })
    
    var time=null;
    function setTimer(){
      time=setInterval(function(){
        addbannerindex();
        rightclick();   
      },5000)
    }
    function clearTimer(){
      clearInterval(time);  
    }
    setTimer();
    $(".banner").mouseover(function(){
      clearTimer();
    })
    $(".banner").mouseout(function(){
      setTimer();
    })

    $(".bannerbtnlistg").click(function(){
        bannerindex=$(this).index();
        addbannerindex();
        rightclick();
    }) 

  })

})
</script>
	</html>